中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
In situ study of nanostructure and morphological development during the crystal-mesophase transition of poly(di-n-hexylsilane) and poly(di-n-butylsilane) by X-ray and hot-stage AFM

文献类型:期刊论文

作者Hu, ZJ; Du, BY; Zhang, FJ; Xie, FC; He, TB
刊名POLYMER
出版日期2002-10-01
卷号43期号:22页码:6005-6012
关键词Polysilane Morphology Crystal-mesophase Transition
ISSN号0032-3861
英文摘要Nanostructure and morphology and their development of poly(di-n-hexylsilane) (PDHS) and poly(di-n-butylsilane) (PDBS) during the crystal-mesophase transition are investigated using small angle X-ray scattering (SAXS), wide angle X-ray diffraction and hot-stage atomic force microscopy. At room temperature, PDHS consists of stacks of lamellae separated by mesophase layers, which can be well accounted using an ideal two-phase model. During the crystal-mesophase transition, obvious morphological changes are observed due to the marked changes in main chain conformation and intermolecular distances between crystalline phase and mesophase. In contrast to PDHS, the lamellae in PDBS barely show anisotropy in dimensions at room temperature. The nonperiodic structure and rather small electronic density fluctuation in PDBS lead to the much weak SAXS. The nonperiodic structure is preserved during the crystal-mesophase transition because of the similarity of main chain conformation and intermolecular distances between crystalline phase and mesophase. (C) 2002 Published by Elsevier Science Ltd.
语种英语
WOS记录号WOS:000178269200023
出版者ELSEVIER SCI LTD
源URL[http://ir.iccas.ac.cn/handle/121111/78705]  
专题中国科学院化学研究所
通讯作者He, TB
作者单位Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Jilin, Peoples R China
推荐引用方式
GB/T 7714
Hu, ZJ,Du, BY,Zhang, FJ,et al. In situ study of nanostructure and morphological development during the crystal-mesophase transition of poly(di-n-hexylsilane) and poly(di-n-butylsilane) by X-ray and hot-stage AFM[J]. POLYMER,2002,43(22):6005-6012.
APA Hu, ZJ,Du, BY,Zhang, FJ,Xie, FC,&He, TB.(2002).In situ study of nanostructure and morphological development during the crystal-mesophase transition of poly(di-n-hexylsilane) and poly(di-n-butylsilane) by X-ray and hot-stage AFM.POLYMER,43(22),6005-6012.
MLA Hu, ZJ,et al."In situ study of nanostructure and morphological development during the crystal-mesophase transition of poly(di-n-hexylsilane) and poly(di-n-butylsilane) by X-ray and hot-stage AFM".POLYMER 43.22(2002):6005-6012.

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来源:化学研究所

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